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Species: Hypoplectrus nigricans, Black hamlet

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all black

Hypoplectrus nigricans (Poey, 1852)

Black hamlet

Head and body deep, strongly compressed; forehead straight; snout relatively short; top jaw protrusible; rear of top jaw exposed when mouth closed, without accessory bone above it; teeth fixed; preoperculum angular, serrated, several small forward pointing spines on lower edge near the corner; gill rakers 17-23; dorsal fin X, 14-17, no notch after spines, membranes between spines not indented; pelvics long, reach to or beyond anus; tail fin slightly forked; lateral line scales 48-53; soft dorsal and anal fins mostly scaleless.

Head and body black, grey or dark brown; all fins except the pectorals are colored as the body; pectorals are black in black bodied fish, clear in those with grey bodies; there may be a bluish cast on various parts of the body and fins.

Reaches 15.3 cm.

Lives on reefs.

Depth range: 1-67 m.

The Bahamas through the Caribbean.


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Salinity
  • Marine Only
  • Marine
Inshore/Offshore
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
Habitat
  • Reef only
  • Corals
  • Rocks
  • Reef associated (reef + edges-water column & soft bottom)
  • Reef (rock/coral/oyster)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
Diet
  • Mobile benthic crustacea (shrimps/crabs)
  • Bony fishes
Egg Type
  • Data
  • Pelagic
  • Pelagic larva
Global Endemism
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Island (s)
  • GC endemic
  • Continent + Island (s)
  • Continent
Residency
  • Resident
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
  • Tropical (10-23N, Nicaragua / Cuba)
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Not evaluated / Listed
CITES
  • Not listed
Length Max
  • 15.3
Depth Range Min
  • 1
Depth Range Max
  • 67